Sunday

April 20, 2014

April 20, 2014

Posted by **danielle** on Monday, October 20, 2008 at 11:55pm.

Solve the system of equations using the substitution method.

x-y=-1

5x+4y=-23

- algebra -
**Rico_TLP**, Tuesday, October 21, 2008 at 12:02amEqn (1) to be mly by 4,

then we have 4x-4y=-4,

(2)5x+4y=-23

----------

9x+ 0=-27

9x=-27

x=-27/9=-3

x=-3.

to get y,

we substitute in the eqn(1)

(x-y=-1) as -3-y=-1

-3+1=y

y=-2.

Therefore, we get x=-3

y=-2

**Related Questions**

algebra - i need help with these problems (either a solution or how to plug them...

Algebra - Solving system of linear equations by using the apropiate method name ...

College Algebra - Solve the system of equations using matrices. If system has no...

algebra - use method of substitution to solve the system of linear equations. 2x...

math - solve by the substitution method. 5x + 7y= -19 x=4-4y what is the ...

Linear Equations - Can you please help solve this equation using the ...

Intermediate Algebra - Solve the system of equations by graphing. Then classify ...

Intermediate Algebra - Solve the following system of equations. x+4y=5 x=6-4y ...

algebra - Solve using the substitution method. Show your work. If the system has...

Algebra - Solve using the substitution method. Show your work. If the system has...